The way you migrate Web Wiz Forums is;
1. Download all the files for Web Wiz Forums from the old host
2. Create a backup of the SQL Server database from the old host
3. Upload the Web Wiz Forum files to the new web host
4. Restore the SQL Server database backup to the new host
5. Edit the file database/database_settings.asp in notepad to put in the database connection details for the new webhost.
The error message you are getting says that there is an issue connecting to the database. Check with your new provider the database connection information they have given you is correct. The SQL Server needs to be installed in mix mode to allow TCP/IP connections.
If you get completely stuck we do provide hosting from our own Data Centre where we would be happy to get the forum running for you, and also maintain it by installing any updates.
Edited by WebWiz-Bruce - 22 February 2022 at 10:55am